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| 4872762596 | Science | An endeavor to discover how nature works and use that knowledge to make predictions about what is likely to happen in nature. | 0 | |
| 4872762597 | Data | Information needed to answer questions | 1 | |
| 4872762598 | Experiments | Procedures carried out under controlled conditions to gather information and test ideas | 2 | |
| 4872762599 | Scientific Hypothesis | A possible and testable explanation of what they observe in nature or in the experiments | 3 | |
| 4872762600 | Model | An approximate representation or simulation of a system being studied. | 4 | |
| 4872762601 | Scientific Theory | A well-tested and widely accepted scientific hypothesis or a group of related hypothesis | 5 | |
| 4872762602 | Peer Review | Happens when scientists report details of the methods and models they used, the results of their experiments | 6 | |
| 4872762603 | Deductive Reasoning | Using specific observations and measurements to arrive at a general conclusion | 7 | |
| 4872762604 | Scientific Law/ Law of Nature | A well tested and widely accepted description of what we find happening over and over again | 8 | |
| 4872762605 | Paradigm Shift | When new discoveries and new ideas can overthrow a well accepted scientific theory or law | 9 | |
| 4872762606 | Tentative Science or Frontier Science | Preliminary scientific data, hypothesis, and models that have not been widely tested and accepted. | 10 | |
| 4872762607 | Reliable Science | Concepts and ideas that are widely accepted by experts in a particular field of the natural or social sciences | 11 | |
| 4872762608 | Unreliable Sciece | Scientific results or hypothesis presented as a reliable science but not having undergone the rigors of the peer review process. | 12 | |
| 4872762609 | Protons | Positively Charged | 13 | |
| 4872762610 | Neutrons | No electrical charge | 14 | |
| 4872762611 | Electrons | Negatively charged | 15 | |
| 4872762612 | Nucleus | Extremely tiny center of an atom making up most of the atom's mass. | 16 | |
| 4872762613 | Atomic Number | Number of protons in the nucleus of an atom | 17 | |
| 4872762614 | Mass Number | Sum of the number of neutrons and the number of protons in the nucleus of an atom | 18 | |
| 4872762615 | Law of Conservation of Energy | When energy is converted from one form to another in a physical or chemical change, no energy is created or destroyed | 19 | |
| 4872762616 | Second Law of Thermodynamics | When energy changes from one form to another, we always end up with lower quality or less usable energy than we started with | 20 | |
| 4872762617 | Low Quality Energy | Dispersed and has little capacity to do useful work. | 21 | |
| 4872762618 | System | A set of components that function and interact in some regular way | 22 | |
| 4872762619 | Energy Effiency | A measure of how much useful work is accomplished by a particular input of energy into a system | 23 | |
| 4872762620 | Positive Feedback Loop | Causes a system to change further in the same direction | 24 | |
| 4872762621 | Negative/Corrective Feedback Loop | Causes a system to chance in the opposite direction from which it is moving | 25 | |
| 4872762622 | Tipping Point | Threshold level as which an environmental problem causes a fundamental and irreversible shift in the behavior of a system | 26 | |
| 4872762623 | Synergistic Interaction | Interaction of two or more factors or processes so that the combined effect is greater than the sum of their separate effects | 27 | |
| 4872762624 | Input | Matter, energy, or information entering a system | 28 | |
| 4872762625 | Flows or Through Puts | Rate of flow of matter, energy, or information through a system | 29 | |
| 4872762626 | Inductive Reasoning | Involves using specific observations and measurements to arrive at a general conclusion or hypothesis | 30 | |
| 4872762627 | Matter | Anything that has mass and takes up space | 31 | |
| 4872762628 | Compounds | Combinations of two or more different elements held together in fixed proportions | 32 | |
| 4872762629 | Atom | Smallest unit of matter into which an element can be divided and still retain its chemical properties | 33 | |
| 4872762630 | Isotopes | Forms of an element having the same atomic number but different mass numbers | 34 | |
| 4872762631 | Ion | An atom or groups of atoms with one or more net positive or negative electrical charges | 35 | |
| 4872762632 | Acidity | A chemical characteristic that helps determine how a substance dissolved in water will interact with and affect its environment | 36 | |
| 4872762633 | Molecule | A combination of two or more atoms of the same or different elements held together by forces called chemical bonds | 37 | |
| 4872762634 | Organic Compounds | Contain at least 2 carbon atoms combined with atoms of one or more other elements | 38 | |
| 4872762635 | Physical Change | A change in which the chemical composition of a molecule does not change | 39 | |
| 4872762636 | Chemical Change | A change in which the chemical composition of a molecule does change | 40 | |
| 4872762637 | Nuclear Fission | A nuclear change in which the nuclei of certain isotopes with large mass numbers are split apart into lighter nuclei when struck by neutrons | 41 | |
| 4872762638 | Nuclear Fusion | A nuclear change in which two isotopes of light elements are forced together at extremely high temperatures until they fuse to form a heavier nucleus. | 42 | |
| 4872762639 | Law of Conservation of Matter | When a physical or chemical change occurs, no atoms are created nor destroyed. | 43 | |
| 4872762640 | Nuclear Changes | Changes in the Nuclei of its atoms | 44 |
